Model Independent Determination of the Gluon Condensate in Four Dimensional SU(3) Gauge Theory

Gunnar S. Bali, Clemens Bauer, and Antonio Pineda
Phys. Rev. Lett. 113, 092001 – Published 25 August 2014

Abstract

We determine the nonperturbative gluon condensate of four-dimensional SU(3) gauge theory in a model-independent way. This is achieved by carefully subtracting high-order perturbation theory results from nonperturbative lattice QCD determinations of the average plaquette. No indications of dimension-two condensates are found. The value of the gluon condensate turns out to be of a similar size as the intrinsic ambiguity inherent to its definition. We also determine the binding energy of a B meson in the heavy quark mass limit.

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  • Received 25 March 2014

DOI:https://doi.org/10.1103/PhysRevLett.113.092001

© 2014 American Physical Society

Authors & Affiliations

Gunnar S. Bali1,2, Clemens Bauer1, and Antonio Pineda3

  • 1Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany
  • 2Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
  • 3Grup de Física Teòrica, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain

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Issue

Vol. 113, Iss. 9 — 29 August 2014

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